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41.
The ability of bile to concentrate drugs and metabolites coupled with its general availability make it suitable for analysis and often the fluid of choice in postmorten cases requiring drug screening. Bile (5 to 10 ml) was diluted with water, sulfuric acid was added, and the mixture was autoclaved. The precipitated bile salts were easily removed by filtration and the filtrate (pH adjusted to 8.0 to 8.5) extracted with XAD-2 resin. Drugs were eluted with a mixture of ethyl acetate/1,2-dichloroethane and analyzed with thin-layer chromatography. Varying the dilution of bile improved the recovery of morphine, codeine, methadone, amobarbital, and phenobarbital. Excessive dilution, however, caused a washing phenomenon and reduced recovery of some drugs, as shown with morphine and codeine. The procedure described is useful for the rapid screening of bile specimens for drugs. 相似文献
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Bryan Caplan 《Public Choice》2010,142(1-2):1-8
Contrary to my critics, voter irrationality does not imply that economists cannot mitigate political failure. With rational voters, reform-minded economists have few viable tactics; with irrational voters reformers have more options. Rational voters can be swayed only by facts and logic; irrational voters could respond to better rhetoric. Rational voters strategically punish those who ignore their policy preferences; irrational voters use less effective disciplinary strategies that create political slack. Even with irrational voters, efficiency-enhancing reform is hard. With rational voters, however, democracy’s failure to adopt a reform is strong evidence that the reform does not enhance efficiency. 相似文献
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Previous research suggests that positive and normative beliefs about economics are largely unrelated. Using questions from two national surveys, this study finds that: (a)?the underlying determinants of positive and normative beliefs are strikingly similar; (b)?education is by far the strongest overall determinant of both positive and normative beliefs; and (c) the variables known to push positive beliefs in the same direction as formal economic training—education, male gender, income growth, and job security—also push normative beliefs in the same direction. These results strongly suggest that the positive-normative connection has been underestimated. 相似文献
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Professeur Valentin AL. Georgesco 《议会、议员及代表》2013,33(1):73-80
Summary This paper examines the relations between republican and democratic forces in Restoration Spain. From the middle of the last century, republicanism was the political movement most clearly involved with the democratization of Spanish politics. After the collapse of the 1873 Republic, the republican movement went through a severe crisis which led to its fragmentation over issues both of principle (federalists against unitarists) and of practice (revolutionaries against reformists). Between 1873 and 1931 Spanish republicanism underwent a marked transformation. The old republicanism was characterized by the modes of political activity of the nineteenth century — the club, the committee, the masonic lodge. The new republicanism, on the other hand, emerged from the first decade of the present century clearly moving in the direction of the modern political parties which finally crystallized out in 1931. Together the Radical and the Reformist parties are a case‐study in the transition between the classical and the modern which perfectly exemplifies the hybrid nature of republican democracy. Though Spanish republicanism was socially heterogeneous, embracing within its various parts elements of the upper and middle bourgeoisie, substantial sections of the petty, urban bourgeoisie, and a declining, but still numerous, section of the working class, it still needed an alliance with the socialists (the Conjunción of 1910). However, what was most notable about Spanish republicanism was its link with the intelligentsia; it was they who gave it its character and who made the greatest effort to integrate Spain into the most modern currents of European thought. 相似文献
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SAMUEL P. HUNTINGTON ANWAR IBRAHIM SHEIKH SAUD NASSER AL‐SABBAH MOHAMAD MAHATHIR MOHAMAD KHATAMI MASOUMEH EBTEKAR ABDULLAHI AHMED AN'NA'IM HASSAN AL‐TURABI GABER ASFOUR MICHAEL M. J. FISCHER NILÜFER GÖLE MARTIN MARTY FARIDA FAOUZIA CHARFI LESZEK KOLAKOWSKI MUNAWAR AHMED ANEES DANIEL J. BOORSTIN RYSZARD KAPUSCINSKI IMMANUEL WALLERSTEIN JEAN DANIEL REGIS DEBRAY MAHMOUD HUSSEIN TAHAR BEN JELLOUN KANAN MAKIYA 《新观察季刊》2008,25(1):14-17